Prevention of asthma with cromolyn.
D001249:Asthma / Q000188:drug therapy*; D001250:Asthma, Exercise-Induced / Q000188:drug therapy; D001993:Bronchodilator Agents / Q000627:therapeutic use; D004205:Cromolyn Sodium / Q000627:therapeutic use*; D004305:Dose-Response Relationship, Drug; D006801:Humans
D001993:Bronchodilator Agents; D004205:Cromolyn Sodium